Florida is in many ways both the oldest and newest of the megastates. Once an insect-ridden swampland, it is now a top destination for tourism, business, agriculture and innovation. The ideas and actions of a colorful cast of characters--from beloved cultural icons to political heroes and even a socialist dictator--transformed the peninsula. A Barbados native rescued Florida's orange industry after the catastrophic 1835 freeze. Known as the "Grande Dame of the Everglades," Marjory Stoneman Douglas worked tirelessly to save the state's vast, incomparable wetlands from annihilation in the early twentieth century. In the mid-1800s, a Florida doctor developed a precursor to modern air conditioning. Join former U.S. senator George LeMieux and journalist Laura Mize as they profile and rank, according to impact, the twenty-five trailblazers who have changed the state forever.